body {
	margin: 0;
	background-color: #000;
	color: #fff;
	font-family: Monospace;
	font-size: 13px;
	line-height: 24px;
	overscroll-behavior: none;
	position: relative;
}
.btn {
	position: fixed;
	right: 20px;
	top: 50%;
	display: flex;
	margin-top: -88px;
	flex-direction: column;
	overflow: hidden;
}
.btn>button {
	margin-bottom: 10px;
	width: 50px;
	height: 50px;
	border-radius: 50%;
	border: none;
	text-indent: -999px;
	outline: none;
}
#btn1 {
	background: url('/img/uv_grid_opengl.jpg') center no-repeat;
	background-size: 100%;
}
#btn2 {
	background: url('/img/jinshu.jpeg') center no-repeat;
	background-size: 100%;
}
#btn3 {
	background: url('/img/16pic_1839516_b.jpg') center no-repeat;
	background-size: 100% 100%;
}

#label {
	position: absolute;
	padding: 10px;
	background: #000;
	line-height: 1;
	border-radius: 5px;
	display: none;
}

.label {
	margin-top: -20px;
	color: #fff;
	border: 1px solid #fff;
	padding: 3px 5px;
	background: rgba(0, 0, 0, 0.6);
	z-index: 99;
}

a {
	color: #ff0;
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

button {
	cursor: pointer;
	text-transform: uppercase;
}

#info {
	position: absolute;
	top: 0px;
	width: 100%;
	padding: 10px;
	box-sizing: border-box;
	text-align: center;
	-moz-user-select: none;
	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
	pointer-events: none;
	z-index: 1; /* TODO Solve this in HTML */
}

a, button, input, select {
	pointer-events: auto;
}

.dg.ac {
	-moz-user-select: none;
	-webkit-user-select: none;
	-ms-user-select: none;
	user-select: none;
	z-index: 2 !important; /* TODO Solve this in HTML */
}

#overlay {
	position: absolute;
	z-index: 2;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(0,0,0,0.7);
}

	#overlay button {
		background: #ffffff;
		border: 0;
		color: #000000;
		padding: 16px 20px;
		text-transform: uppercase;
		cursor: pointer;
	}

#notSupported {
	width: 50%;
	margin: auto;
	background-color: #f00;
	margin-top: 20px;
	padding: 10px;
}

#space1 {
	position: fixed;
	background: #ccc;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	z-index: -1;
}
#curtain {
    background: black;
    opacity: 0;
}

.screen-change {
    animation-name: screen-change;
    animation-duration: 2s;
}
.screen-change-1 {
    animation-name: screen-change2;
    animation-duration: 2s;
}

@keyframes screen-change {
    0% {opacity: 0;z-index: 9;}
    50% {opacity: 0.5;;z-index: 9;}
    100% {opacity: 1;z-index: 9;}
}
@keyframes screen-change2 {
    0% {opacity: 1;z-index: 9;}
    50% {opacity: 0.5;;z-index: 9;}
    100% {opacity: 0; z-index: -1;}
}